Add bans and ip-bans

[Alvsch]

Description

Adds the ability to ban players via username and uuid, or ip.
The data is stored in banned-players.json and banned-ips.json

Testing

Joining the server while being banned and ip-banned.
Joining the server without being banned.
Loading data from vanilla servers.
All commands seem to work as intended when used.

Checklist

Things need to be done before this Pull Request can be merged.

• Add ban, ban-ip, pardon, pardon-ip and banlist commands
• Fix kick message to include reason and expiration

Please follow our Coding Guidelines

[glitchy-sk8k9]

Maybe SQL or smth and not JSON

[DataM0del]

Maybe SQL or smth and not JSON

it's an array, we don't need a database format for storing a list of IPs / usernames & ban reasons

[Snowiiii]

@Alvsch any progress on this one ?

[Alvsch]

#451 have things to do with being able to join which this pr has implemented can_join function for
#453 will allow for offline players to be banned

[Alvsch]

Also good to know. The ban reason formats the timezone offset (eg. +1:00) instead of the timezone name (eg. CET). I couldn't find any ways of doing it.

How a vanilla ban looks like for reference:

[Snowiiii]

Also good to know. The ban reason formats the timezone offset (eg. +1:00) instead of the timezone name (eg. CET). I couldn't find any ways of doing it.

How a vanilla ban looks like for reference:

It should be possible. Vanilla uses this format "yyyy-MM-dd HH:mm:ss Z", Locale.ROOT im sure it is somehow possible to use Locale root in chrono or time